Thin-film spatial filters.

  title={Thin-film spatial filters.},
  author={Ivan Moreno and J. Araiza and M. Avenda{\~n}o-Alejo},
  journal={Optics letters},
  volume={30 8},
  • Ivan Moreno, J. Araiza, M. Avendaño-Alejo
  • Published 2005
  • Medicine
  • Optics letters
  • A thin-film optical filter used as a one-dimensional spatial filter is presented, and its design is briefly examined. The filter consists of a stack of quarter-wave dielectric layers upon a right-angle prism that selectively cancel a reflected or transmitted plane-wave front for various angles of incidence. Transmittance and reflectance are low-pass functions or high-pass functions of the angle of incidence with a high degree of steepness. In combination, these filters exhibit bandpass… CONTINUE READING
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